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Local-first software (2019)

https://www.inkandswitch.com/essay/local-first/

531•gasull•8h ago•154 comments

Cod Have Been Shrinking for Decades, Scientists Say They've Solved Mystery

https://www.smithsonianmag.com/smart-news/these-cod-have-been-shrinking-dramatically-for-decades-now-scientists-say-theyve-solved-the-mystery-180986920/

51•littlexsparkee•4h ago•17 comments

Optimizing Tool Selection for LLM Workflows with Differentiable Programming

https://viksit.substack.com/p/optimizing-tool-selection-for-llm

24•viksit•2h ago•5 comments

Europe's first geostationary sounder satellite is launched

https://www.eumetsat.int/europes-first-geostationary-sounder-satellite-launched

154•diggan•8h ago•33 comments

Atomic "Bomb" Ring from KiX (1947)

https://toytales.ca/atomic-bomb-ring-from-kix-1947/

43•gscott•3d ago•8 comments

Speeding up PostgreSQL dump/restore snapshots

https://xata.io/blog/behind-the-scenes-speeding-up-pgstream-snapshots-for-postgresql

69•tudorg•6h ago•11 comments

macOS Icon History

https://basicappleguy.com/basicappleblog/macos-icon-history

98•ksec•7h ago•31 comments

X-Clacks-Overhead

https://xclacksoverhead.org/home/about

188•weinzierl•3d ago•37 comments

The Prime Reasons to Avoid Amazon

https://blog.thenewoil.org/the-prime-reasons-to-avoid-amazon

127•DanAtC•2h ago•86 comments

The Calculator-on-a-Chip (2015)

http://www.vintagecalculators.com/html/the_calculator-on-a-chip.html

18•Bogdanp•6h ago•2 comments

WinUAE 6 Amiga Emulator

https://www.winuae.net/

19•doener•1h ago•0 comments

Seine reopens to Paris swimmers after century-long ban

https://www.lemonde.fr/en/france/article/2025/07/05/seine-reopens-to-paris-swimmers-after-century-long-ban_6743058_7.html

90•divbzero•5h ago•49 comments

Haskell, Reverse Polish Notation, and Parsing

https://mattwills.bearblog.dev/haskell-postfix/

32•mw_1•3d ago•6 comments

Is It Cake? How Our Brain Deciphers Materials

https://nautil.us/is-it-cake-how-our-brain-deciphers-materials-1222193/

14•dnetesn•2d ago•3 comments

Parametric shape optimization with differentiable FEM simulation

https://docs.pasteurlabs.ai/projects/tesseract-jax/latest/examples/fem-shapeopt/demo.html

9•dionhaefner•2d ago•0 comments

Pet ownership and cognitive functioning in later adulthood across pet types

https://www.nature.com/articles/s41598-025-03727-9

40•bookofjoe•3h ago•14 comments

Gecode is an open source C++ toolkit for developing constraint-based systems (2019)

https://www.gecode.org/

59•gjvc•14h ago•13 comments

What 'Project Hail Mary' teaches us about the PlanetScale vs. Neon debate

https://blog.alexoglou.com/posts/database-decisions/

38•konsalexee•11h ago•54 comments

Build Systems à la Carte (2018) [pdf]

https://www.microsoft.com/en-us/research/wp-content/uploads/2018/03/build-systems.pdf

67•djoldman•3d ago•16 comments

QSBS Limits Raised

https://www.mintz.com/insights-center/viewpoints/2906/2025-06-25-qsbs-benefits-expanded-under-senate-finance-proposal

47•tomasreimers•11h ago•21 comments

Solve high degree polynomials using Geode numbers

https://www.tandfonline.com/doi/full/10.1080/00029890.2025.2460966

4•somethingsome•3d ago•2 comments

Just Ask for Generalization (2021)

https://evjang.com/2021/10/23/generalization.html

31•jxmorris12•2d ago•3 comments

Being too ambitious is a clever form of self-sabotage

https://maalvika.substack.com/p/being-too-ambitious-is-a-clever-form

642•alihm•1d ago•179 comments

Optimizing typography of insect labels using free fonts and free software (2012) [pdf]

https://www.akentsoc.org/doc/Bowser_ML_2012.pdf

24•exvi•3d ago•2 comments

The History of Electronic Music in 476 Tracks (1937–2001)

https://www.openculture.com/2025/06/the-history-of-electronic-music-in-476-tracks.html

109•bookofjoe•3d ago•36 comments

Problems the AI industry is not addressing adequately

https://www.thealgorithmicbridge.com/p/im-losing-all-trust-in-the-ai-industry

165•baylearn•12h ago•176 comments

Telli (YC F24) Is Hiring Engineers [On-Site Berlin]

https://hi.telli.com/join-us

1•sebselassie•16h ago

A 37-year-old wanting to learn computer science

https://initcoder.com/posts/37-year-old-learning-cs/

145•chbkall•14h ago•138 comments

The Moat of Low Status

https://usefulfictions.substack.com/p/learn-to-love-the-moat-of-low-status

333•jger15•3d ago•141 comments

Wind Knitting Factory

https://www.merelkarhof.nl/work/wind-knitting-factory

260•bschne•2d ago•60 comments

Open in hackernews

Numerical Electromagnics Code (NEM)

https://www.nec2.org/

20•hyperific•2d ago

Comments

richk449•7h ago

What’s the latest on open/free solvers to replace HFSS/CST?

CamperBob2•6h ago

OpenEMS has a lot of mindshare in that area. Not sure how effective it is at replacing proprietary packages like HFSS, though.

zoomablemind•5h ago

Does HFSS visualize the field in real-time or a user needs to set the geometry/parameters then precalculate the field and only then be able to explore the visualization?

Say, if I wanted to see immediate effects of changing an incidence angle, could I just "scroll" the incidence parameter?

richk449•5h ago

HFSS does a typical FEM matrix solve then displays the results. It is often used for very complex or large problems, so as far as I know it isn’t set up for instant display of results. That would be a neat feature for small problems.

gjrq•4h ago

Best one I know of as a direct replacement is AWS PALACE: https://awslabs.github.io/palace/stable/

Of course, you have to interact with the solver through JSON files and provide your own initial mesh. They recently added adaptive refinement but I don't know how well it works. Given what Ansys charges for an HFSS seat though can't complain!

amelius•3h ago

Wow, is there a Kicad script for generating input for this tool based on a pcb layout? That would be awesome!

mNovak•3h ago

Relatedly, is there a good open replacement for ADS/Microwave Office? I've seen QUCS/QUCS studio but don't know if there's others out there? Last I looked, the more general SPICE solvers don't support S-param blocks and transmission lines, which are pretty critical.

physicsguy•2h ago

Depends what you're doing and how maths-y you are since you need to tell it the equations you want to solve, but FEniCs is a very good general purpose FEM code, and you can couple it to Bempp for BEM stuff.